/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef Threading_h
#define Threading_h
#include <wtf/Noncopyable.h>
#include <pthread.h>
namespace WebCore {
class ThreadCondition;
class Mutex : Noncopyable {
friend class ThreadCondition;
public:
Mutex() { pthread_mutex_init(&m_mutex, NULL); }
~Mutex() { pthread_mutex_destroy(&m_mutex); }
int lock() { return pthread_mutex_lock(&m_mutex);}
int tryLock() { return pthread_mutex_trylock(&m_mutex); }
int unlock() { return pthread_mutex_unlock(&m_mutex); }
private:
pthread_mutex_t m_mutex;
};
class MutexLocker : Noncopyable {
public:
MutexLocker(Mutex& mutex) : m_mutex(mutex) { m_mutex.lock(); }
~MutexLocker() { m_mutex.unlock(); }
private:
Mutex& m_mutex;
};
class ThreadCondition : Noncopyable {
public:
ThreadCondition() { pthread_cond_init(&m_condition, NULL); }
~ThreadCondition() { pthread_cond_destroy(&m_condition); }
int wait(Mutex& mutex) { return pthread_cond_wait(&m_condition, &mutex.m_mutex); }
int signal() { return pthread_cond_signal(&m_condition); }
int broadcast() { return pthread_cond_broadcast(&m_condition); }
private:
pthread_cond_t m_condition;
};
void callOnMainThread(void (*)());
#if PLATFORM(WIN)
void initializeThreading();
#else
inline void initializeThreading()
{
}
#endif
} // namespace WebCore
#endif // Threading_h